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Split arel_table into method to get a relation and another to memoize the default relation.

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This commit is contained in:
Jeremy Kemper 2009-11-13 10:44:34 -08:00
parent 0da71980cd
commit bd51790895
5 changed files with 13 additions and 13 deletions
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4
activerecord/lib/active_record/associations.rb
View file

@ -1698,7 +1698,7 @@ module ActiveRecord
def construct_finder_arel_with_included_associations(options, join_dependency)
scope = scope(:find)
relation = arel_table((scope && scope[:from]) || options[:from])
relation = arel_table_for((scope && scope[:from]) || options[:from])
for association in join_dependency.join_associations
relation = association.join_relation(relation)
@ -1741,7 +1741,7 @@ module ActiveRecord
def construct_finder_sql_for_association_limiting(options, join_dependency)
scope = scope(:find)
relation = arel_table(options[:from])
relation = arel_table_for(options[:from])
for association in join_dependency.join_associations
relation = association.join_relation(relation)

4
activerecord/lib/active_record/associations/has_and_belongs_to_many_association.rb
View file

@ -56,7 +56,7 @@ module ActiveRecord
if @reflection.options[:insert_sql]
@owner.connection.insert(interpolate_sql(@reflection.options[:insert_sql], record))
else
relation = arel_table(@reflection.options[:join_table])
relation = arel_table_for(@reflection.options[:join_table])
attributes = columns.inject({}) do |attrs, column|
case column.name.to_s
when @reflection.primary_key_name.to_s
@ -82,7 +82,7 @@ module ActiveRecord
if sql = @reflection.options[:delete_sql]
records.each { |record| @owner.connection.delete(interpolate_sql(sql, record)) }
else
relation = arel_table(@reflection.options[:join_table])
relation = arel_table_for(@reflection.options[:join_table])
relation.conditions(relation[@reflection.primary_key_name].eq(@owner.id).
and(Arel::Predicates::In.new(relation[@reflection.association_foreign_key], records.map(&:id)))
).delete

2
activerecord/lib/active_record/associations/has_many_association.rb
View file

@ -69,7 +69,7 @@ module ActiveRecord
when :delete_all
@reflection.klass.delete(records.map { |record| record.id })
else
relation = arel_table(@reflection.table_name)
relation = arel_table_for(@reflection.table_name)
relation.conditions(relation[@reflection.primary_key_name].eq(@owner.id).
and(Arel::Predicates::In.new(relation[@reflection.klass.primary_key], records.map(&:id)))
).update(relation[@reflection.primary_key_name] => nil)

12
activerecord/lib/active_record/base.rb
View file

@ -1493,11 +1493,11 @@ module ActiveRecord #:nodoc:
def arel_table(table = nil)
table = table_name if table.blank?
if @arel_table.nil? || @arel_table.name != table
@arel_table = Relation.new(self, Arel::Table.new(table))
end
@arel_table
@arel_table ||= arel_table_for(table_name)
end
def arel_table_for(table_name)
Relation.new(self, Arel::Table.new(table_name))
end
private
@ -1666,7 +1666,7 @@ module ActiveRecord #:nodoc:
def construct_finder_arel(options = {}, scope = scope(:find))
# TODO add lock to Arel
relation = arel_table(options[:from]).
relation = arel_table_for(options[:from]).
joins(construct_join(options[:joins], scope)).
conditions(construct_conditions(options[:conditions], scope)).
select(options[:select] || (scope && scope[:select]) || default_select(options[:joins] || (scope && scope[:joins]))).

4
activerecord/lib/active_record/calculations.rb
View file

@ -146,7 +146,7 @@ module ActiveRecord
join_dependency = ActiveRecord::Associations::ClassMethods::JoinDependency.new(self, merged_includes, construct_join(options[:joins], scope))
construct_finder_arel_with_included_associations(options, join_dependency)
else
relation = arel_table(options[:from]).
relation = arel_table_for(options[:from]).
joins(construct_join(options[:joins], scope)).
conditions(construct_conditions(options[:conditions], scope)).
order(options[:order]).
@ -164,7 +164,7 @@ module ActiveRecord
def execute_simple_calculation(operation, column_name, options, relation) #:nodoc:
column = if column_names.include?(column_name.to_s)
Arel::Attribute.new(arel_table(options[:from] || table_name),
Arel::Attribute.new(arel_table_for(options[:from] || table_name),
options[:select] || column_name)
else
Arel::SqlLiteral.new(options[:select] ||